As Matt points out, SysRq+F seems to allow a user to kill processes they shouldn't be able to, including (possibly) the screensaver. So yeah, I'd say this default is a security problem.
** This bug has been flagged as a security vulnerability ** Changed in: linux (Ubuntu) Importance: Low => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/194676 Title: SysRq should be limited by default like openSUSE To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/194676/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
